Urban black and odorous water body identification method based on conventional water quality parameters

Abstract

The invention discloses an urban black and odorous water body identification method based on conventional water quality parameters. The method comprises the following steps of acquiring conventional water quality detection parameters of a water body, performing standardized calculation on the concentration of the conventional water quality detection parameters of the water body to obtain standardized water quality detection parameters, according to the standardized water quality detection parameters, obtaining a water body black and odorous grade of the corresponding water quality detection time period, establishing a factor analysis model, wherein the factor analysis model comprises blackening common factors and odor common factors, establishing a water body identification decision-making tree model through the blackening common factor and the odor common factor, and then judging the black and odor condition of the water body through the water body identification decision-making tree model to obtain an identification result. According to the method, an existing surface water quality monitoring system is fully utilized, black and odorous water body distinguishing is achieved on the premise that cost is not increased, and the method has high feasibility and economical efficiency and can be widely applied and popularized.

Description

technical field

[0001] The invention relates to the research field of water environment monitoring, in particular to a method for identifying urban black and odorous water bodies based on conventional water quality parameters. Background technique

[0002] According to the "Guidelines for Urban Black and Odorous Water Treatment Work" issued by the Ministry of Housing and Urban-Rural Development, the subjective judgment criteria for black and odorous water bodies are relatively intuitive, that is, "disgusting colors and / or emitting unpleasant odors". However, among the four water quality parameters required for objective judgment, transparency, dissolved oxygen, oxidation-reduction potential, and ammonia nitrogen, oxidation-reduction potential does not appear in the "Environmental Quality Standards for Surface Water" (GB3838-2002), and does not belong to routine water quality monitoring. In the current investigation of black and odorous water bodies, it is necessary to invest...

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